Door for railway-carriages.



No. 689,404. Patented Dec. 24, |90l.

A. MAUBER.

000B FUR RAILWAY CARBIAGES.

Applxcaion led Kay 8, 1901.)

No. 689,404. Patented Dec. 24,4 l90l.

A. MAUBER.

D003 FDR RAILWAY CARBIAGES.

(Application med my s, 1901.)

(llnlodel.) 2 Sheets-Sheet 2.

UNITED STATESV PATENT OFFICE.

ADOLF MAURER, OF COLOGNE-EHRENFELD, GERMANY.

DOOR FOR RAILWAY-CARRIAGES.

SPECIFICATION forming part of Letters Patent No. 689,404, dated December 24, 1901.

Application led May 8, 1901, Serial No. 59,216. (No model.)

To @ZZ whom, it uta-y concern:

Be itknown that I, ADOLF MAURER, joiner, a subject of the King of Prussia, German Emperor, residing at Httenstrasse 2B, Cologne- Ehrenfeld, in the Kingdom of Prussia, German Empire, have invented certain new and useful Improvements in Doors for Railway- Carriages and I do hereby declare the following to be a full, clear, and eXact'description of the invention, such as will enable others .skilled in the art to which it appertains to make and use the same.

This invention has :for its object a sliding door or gate for the platform of tram-cars and the like in which the horizontal bars are pushed into tubes which are fixed in or on the sides of the car, while the diagonal struts are capable of sliding one in the other and when the door is collapsed lie together with the vertical bars one upon another.

In the accompanying drawings, Figure l is a side view of the closed door; Fig. 2, a section on the line A B of Fig. l; Fig. 3, a section on the line C D of Fig. l, while Figs. 4 and 5 are vertical sections of the snap-lock for holding the door fast in its closed position.

The door consists of two cross-bars d, which are movable horizontally and are inserted in andguided by tubes e. These tubes e are attached to the fixed sides A and pass through the corner-pillars of the car up to the next pillar. At their free ends the cross-bars h are connected with one another by means of vertical side pieces a. On the lower cross-bar d a cruciform piece fis arranged, in which the pivots of the four bars c running to the corners of the door are located. These bars c are not directly connected with the corners of the door, but they are mounted in tubes b, which are pivotally connected with the side pieces a above and below. The side pieces a are so formed that when the door is pushed together or collapsed the tubes b and rods c and also the cruciform piece f lie in grooved recesses formed in the side pieces a. In order to keep the cruciform piece -fin the center,which piece consists of a ring having tlaps arranged above and below carrying the pivots of the rods c, it is attached to the rod g, which lies in a tube e. The adjustment of this rod at the point at which the link-piece f stands in the center between the side pieces a is effected by means of lock is shown in Figs. 4 and 5.

a spring 7o, Fig. 2. This spring or catch la is secured to the outside of the tube e and projects through a hole in the side of the tube. The rod g has a projection on its rear end, which is pushed past the catch or spring when the rod g is inserted in the tube e. The catch Vor spring la arrests the motion of the rod g as it is lslid outward, as shown in Fig. 2, and holds the rod g stationary when the part f is at the middle of the gate. Any other ap'- proved catch or stop may be used as the equivalent of the spring 7c.

In order to retain the door in the closed position, a snap-lock is arranged on the upper cross-bar d, the construction `of which snap It consists of a two-armed lever h, one arm of which--a namely, an upwardly-bent onesnaps behind a nose or projection situated on a bar of the splash-board ory guard-rail and is retained in this position by the'action of a spiral spring Z and a wedge piece m.

In order to open the door or gate, a knob n, connected with thelever 7t,is depreseed,wherea by the nose is released. Then the door is pushed back or collapsed until the side parts a encounter one another, the tubes h finding room in the recesses formed in the same. The door thus appears when in an opened condition as a simple bar and may be used as a handle by the passengers when entering and leaving the car.

1. The combination, with longitudinal guidetubes; of a collapsible door comprising side bars, cross-bars which slide in the said tubes, and diagonal members each formed of two parts slidable one within the other and pivotallyconnected with one of the said crossbars and with the said side bars, substantially as set forth.

2. The combination, with longitudinal guide-tubes; of a collapsible door comprising side bars, cross-bars which slide in the said tubes, a cruciform piece supported by the cross-bar at the middle part of the door, and diagonal members each formed of two parts slidable one within the other, said members being pivoted at one end to the said side bars and'at the other end to the said cruciform piece, substantially as set forth.

3. The combination, with longitudinal IOO 1o two parts slidable one Within the other and l pivoted at one end to the said side bars and at the other end to the said erueiform piece, substantially as set forth.

In testimony whereof I aflix my signature in presence of two Witnesses.

ADOLF MAURER.

Witnesses:

CHARLES L. SIMPLE, KARL SCHMITT. 

